TLDR;
The video provides a detailed guide on how to dual boot Mac OS and Windows on a single PC or laptop, specifically with existing Windows 10 or 11 installations. The process includes installation prerequisites, configuring the necessary tools, and setting up partitions and boot configurations.
- Install Python and Open Core Simplify for configuration.
- Use USB Toolbox for proper USB port mapping.
- Create a Mac OS installer USB drive and partition your SSD for Mac OS installation.
Installing Python and Open Core Simplify [0:05]
To start the dual boot process, install Python from the Microsoft Store to ensure all tools and scripts function correctly. Next, download the Open Core Simplify tool from GitHub, which facilitates the creation of a configured EFI folder for booting Mac OS. After extracting and running the tool, you will scan your hardware and identify compatible Mac OS versions. Once the version is selected, Open Core Simplify will auto-select required patches and settings for your hardware, followed by building the EFI folder.
Configuring USB Ports with USB Toolbox [3:32]
The next step is to address USB mapping since Mac OS has strict limits on USB ports. Download and run USB Toolbox. Scan each USB port by plugging in a USB device sequentially to identify active ports. After the scan, generate a USB mapping text file and place it alongside the EFI folder you previously generated. This ensures proper USB functionality during the Mac OS installation.
Updating Open Core Configuration [5:30]
To load the drivers from USB mapping during boot, download and open OC auxiliary tools. Modify the configuration file in the EFI folder to include entries for both USB map and USB toolbox. Once the configuration is saved, the Open Core EFI setup will be configured properly for installation, avoiding potential issues.
Creating a Mac OS Installer USB Drive [7:35]
Plug in an 8GB USB flash drive and format it with Rufus to make it bootable. Next, copy the entire EFI folder to your USB drive. After this, download the necessary Mac OS recovery image using a script from Open Core pkg. Enter the appropriate command to download your desired Mac OS version, which will create a new folder with recovery files that also needs to be copied to the USB drive.
Preparing for Mac OS Installation [10:54]
Before installation, a new partition must be created on your SSD for Mac OS. Use Windows Disk Management to shrink your main drive and create a new volume formatted as XFAT. Name this volume for easy identification. Restart and enter BIOS to disable secure boot and set the USB drive as the primary boot device. Boot from the USB to access the Open Core boot menu.
Installing Mac OS [12:28]
Once in the Mac OS installer, use Disk Utility to format the newly created Mac OS partition with APFS and begin installation. The system will restart multiple times. After successful installation, complete the initial setup process. If Wi-Fi is unavailable, you can connect via Ethernet or phone tethering.
Configuring Dual Boot without USB Drive [15:09]
After installation, copy the Open Core EFI from the USB to the internal EFI partition for Mac OS booting without the USB. Use OC auxiliary tools to mount the internal EFI partition, then copy the necessary boot and OC folders from the USB. Set Open Core as the default bootloader using a command in an elevated command prompt to allow access to the dual-boot menu upon restart. Finally, you can boot either Windows or Mac OS at startup.
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